The Most Grueling U.S. Opens

1950, Merion

The toughest part about this one? After 72 holes (36 on the final day), Ben Hogan, Lloyd Mangrum and George Fazio had to go out for another 18 the next day. Hogan, in severe pain from a life-threatening car accident less than 15 months prior, ultimately prevailed in the grinding 90-hole test to emerge with one of the most famous wins in sports history.